It doesn’t sound like it had much run time on the motor.
If so, and looking at the lifter, I’d say it started to fail right off the bat.

The cam is a decent match for the combo, other than perhaps if the converter really only flashed to 3000, it would be a little lower than what I’d consider optimum for a cam that size.

FWIW, for the last several years I’ve used Driven “BR” break in oil exclusively.